Effect of three different irrigation solutions applied by passive ultrasonic irrigation.
10.5395/rde.2015.40.2.143
- Author:
Carmen LLENA
1
;
Leopoldo FORNER
;
Raquel CAMBRALLA
;
Adrian LOZANO
Author Information
1. Department of Stomatology, Universitat de Valencia, Valencia, Spain. llena@uv.es
- Publication Type:Original Article
- Keywords:
Chlorhexidine;
Confocal laser scanning microscope;
Dentinal penetration;
Passive ultrasonic irrigation;
Sodium hypochlorite
- MeSH:
Chlorhexidine;
Dentin;
Humans;
Microscopy, Confocal;
Rhodamines;
Sodium Chloride;
Sodium Hypochlorite;
Tooth;
Ultrasonics*
- From:Restorative Dentistry & Endodontics
2015;40(2):143-148
- CountryRepublic of Korea
- Language:English
-
Abstract:
OBJECTIVES: This study evaluated the maximum depth and percentage of irrigant penetration into dentinal tubules by passive ultrasonic irrigation (PUI). MATERIALS AND METHODS: Thirty extracted human teeth were instrumented and divided into three groups. According to final irrigation regimen, 5.25% sodium hypochlorite (Group A, NaOCl), 2% chlorhexidine (Group B, CHX) and saline solution (Group C, control group) were applied with Irrisafe 20 tips (Acteon) and PUI. Irrigant was mixed with 0.1% rhodamine B. Sections at 2 mm, 5 mm, and 8 mm from the apex were examined with confocal laser scanning microscopy (CLSM). The percentage and maximum depth of irrigant penetration were measured. Kruskal-Wallis test and Mann-Whitney test were performed for overall comparison between groups at each level and for pairwise comparison, respectively. Within a group, Wilcoxon test was performed among different levels. p values less than 0.05 were considered significant. RESULTS: In all groups, highest penetration depth and percentage of penetration were observed at the 8 mm level. At 2 mm level, Groups A and B had significantly greater depths and percentages in penetration than Group C (p < 0.05), but there were no significant differences between Groups A and B. At 5 mm level, penetration depths and percentage of penetration was not significantly different among the groups. CONCLUSIONS: NaOCl and CHX applied by PUI showed similar depth and percentage of penetration at all evaluated levels.
